parse.md
In smvr: Simple Implementation of Semantic Versioning

parse_semver parses valid semver strings

Code
  x
Output
  <smvr[5]>
  [1] 1.2.3             1.2.3-alpha.1     2.0.0+build.5     1.2.3-alpha+abcde
  [5] <NA>

parse_pre_release_ids parses valid pre-release identifiers

Code
  x
Output
  alpha.1.2
  beta.2.3.4
  <empty>
  <NA>

parse_semver rejects invalid semver strings

Code
  parse_semver("")
Condition
  Warning:
  ! Cannot parse '' as semantic version, setting to `NA`.
Output
  <smvr[1]>
  [1] <NA>

Code
  parse_semver("01.2.3")
Condition
  Warning:
  ! Cannot parse '01.2.3' as semantic version, setting to `NA`.
Output
  <smvr[1]>
  [1] <NA>

Code
  parse_semver("1.02.3")
Condition
  Warning:
  ! Cannot parse '1.02.3' as semantic version, setting to `NA`.
Output
  <smvr[1]>
  [1] <NA>

Code
  parse_semver("1.2.03")
Condition
  Warning:
  ! Cannot parse '1.2.03' as semantic version, setting to `NA`.
Output
  <smvr[1]>
  [1] <NA>

Only supports up to 5 pre-release identifiers

Code
  parse_semver("1.2.3-alpha.1.2.3.4")
Output
  <smvr[1]>
  [1] 1.2.3-alpha.1.2.3.4

Code
  parse_pre_release_ids("alpha.1.2.3.4")
Output
  alpha.1.2.3.4

Code
  parse_semver("1.2.3-alpha.1.2.3.4.5")
Condition
  Error in `parse_semver()`:
  ! Unsupported pre-release identifiers in '1.2.3-alpha.1.2.3.4.5'.
  ! Only up to 5 pre-release identifiers are supported, got 6.

Code
  parse_pre_release_ids("alpha.1.2.3.4.5")
Condition
  Error in `parse_pre_release_ids()`:
  ! Unsupported pre-release identifiers in 'alpha.1.2.3.4.5'.
  ! Only up to 5 pre-release identifiers are supported, got 6.